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(No Model.)

E. HAMBUJER.

COMBINED LATCH AND LOOK.

No. 366,829. Patented July 19, 1887.

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UNITED STATES PAT NT OFFICE.

EPHRAIM HAMBUJER, OF DETROIT, MICHIGAN, ASSIGNOR OF ONE-HALF TO I .I.CHARLES EIOI-II'IORN, OF SAME PLACE.

COMBINED LATCH AND LOCK.

SPECIFICATION forming part of Letters Patent No. 366,829, dated July 19,1887.

Application filed May 12, 1857. Serial No. 23'l,9l7. (No model.)

To all whom it may concern:

Be it known that 'I, EPI-IRAIM IIAMBUJER, of Detroit, in the countyo'fVayne and State of Michigan, have invented new and usefulImprovements in Combined Latch and Lock;

and I do hereby declare that the following is a full, clear, and exactdescription thereof, reference being had to the accompanying drawings,which form a part of this specification.

This invention relates to certain new and useful improvements incombined latches and locks.

The invention consists in the peculiar coir struction, arrangement, andcombinations of the various parts, all as more fullyhereinafter setforth.

Figure 1 is a plan of my improved latch and lock with back plateremoved. Fig. 2 is a cross-section of the same on line a: m. Fig. 3

:0 is a perspective View of the actuatingbarrel.

Fig. at is a plan of the key. Fig. 5 is a horizontal section on line 2'.2, Fig. 1. Fig. 6 is a cross-section on line yy, Fig. 2.

In the accompanying drawings, which form a part of this specification, Arepresents the loek'case, which incloses the operating parts of thelock.

B is the latch-bolt, which has a sliding movement between the guide aand post b.

0 The rear end of this bolt is provided with a T-head, 0. Upon the postI) is stepped the barrel D, which latter has laterally-projecting armsa.

E is a tumbler pivotally secured upon the '35 post 6, located near thefront end of the case,

its free end being provided with an arm,f, to engage with a recess, h,in the edge of the barrel D and in the pathway of the key. v In the faceof the barrel D are formed two 40 or more keyways, z, to receive theprong ends of the key H, one of such. prongs being beveled off, so thatas it is inserted in the lock it will force the tumbler outwardly andallow the barrel to be partially rotated for retract- 5 ing thelatch-bolt.

Secured to the latch-bolt and projecting through the front face of thecase is a stud, J, by means of which the bolt may be retracted, as inthe usual manner in locks of this character.

K is a locking-slide, which has a stud, 7.", projecting through thecase, by means of which it may be moved so as to bring its stop Z in thepath of the latch-bolt to prevent the latter from being retracted. 5 5

In the center of the barrel D is formed a threaded hole, into which ascrew-plug, m, of greater or shorter length, may be put to correspond tothe depth of the step cut in the end of the key.

G is a spring which actuates both the latchbolt and the tumbler.

The back plate, L, is secured to place in the usual manner, and isprovided with a hollow boss, M, in which is located a key barrel or 6guide, N, for directing the key to its proper engagement with theoperating parts of the lock. This key-barrel is split in halveslongitudinally, and each half is provided with a flange, a, one or bothof which may be notched, as shown, to engage with a shoulder orshoulders on the key. By changing the positions of these notches andlengthening or shortening the plug in the barrel D, the lock can bechanged so that it will require a special key for each lock.

\Vhat I claim as my invention is 1. In a combined latch and lock, thecombination of the latch-bolt B, key-barrel D, provided with theadjustable central plug, m, 8 recess 71-, and arms 0, with the tumblerE, formed with armf to engage said recess, and spring G, actuating boththe bolt and tumbler, substantially as and for the purposes set forth.

2. In a combined latch and lock, the com- 8 bination of the latclrboltB, key barrel D, tumbler E, spring G, hollow boss M, and keyguide N,provided with notched flanges a, substantially as described.

In a combined latch and lock, the combination of the latch-bolt B,key-barrel D, tumbler E, spring G, hollow boss M, key-guide N, andlocking-slide K, when the parts are constructed, arranged, and operatedsubstantially in the manner and for the purposes specified.

EPHRAIM HAMBUJER. lVitnesses:

H. S. SPRAGUE, E. J. SCULLY.

